Home
Class 12
PHYSICS
A bimetallic strip is formed out of two ...

A bimetallic strip is formed out of two identical strips one of copper and the other of brass. The co-efficients of linear expansion of the two metals are `alpha_(C)` and `alpha_(B)`. On heating, the temperature of the strip goes up by △T the strip bends to form an are of radius of curvature `R`. Then `R` is

A

inversely proportional to `|alpha_(B)-alpha_(C)|`

B

proportional to `DeltaT`

C

inversely proportional to `DeltaT`.

D

proportiona to `|alpha_(B)-alpha_(C)|`

Text Solution

Verified by Experts

The correct Answer is:
B, D

`R=(t)/((alpha_(B)-alpha_(C))DeltaT)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A bimetallic strip is formed out of two identical strips one of copper and the other of brass. The coefficients of linear expansion of the strip goes up by DeltaT and the strip bends to from an arc of radius of curvature R. Then R is.

A bimetallic strip is formed out of two identical strips one of copper and the other of brass. The temperature of the strip goes up by DeltaT and the strip bends to from an arc of radius of curvature R. Then R is.

Two straight metallic strips each of thickness t and length l are rivetted together. Their coefficients of linear expansions are alpha_(1) "and" alpha_(2) . If they are heated through temperature DeltaT , the bimetallic strip will bend to form an arc of radius

Two identical rectangular strips. One of copper and the other of steel, are riveted together to from a bimetallic strip (alpha_(copper) gtalpha_(steel)) . On heating. This strip will

The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion alpha_A for the metal A and the temperature T will be

The radius of metal sphere at room temperature T is R and the coefficient of linear expansion of the metal is alpha . The sphere is heated a little by a temperature T, so that new temperature is T+DeltaT . The increase in volume of sphere is approximately

The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion alpha_A for the metal A and the temperature T will be? ( alpha_(A)=3x10^(-6)/ C )

The radius of a metal sphere at room temperature T is R, and the coefficient of linear expansion of the metal is alpha . The sphere is heated a little by a temperature Delta T so that its new temperature is T+ Delta T . The increase in the volume of the sphere is approximately

(A) : When a Bimetalic strip made up of Brass and Iron is heated then brass lies on the convex side. ( R) : Due to lower value of coefficient of linear expansion, brass aquires convex shape.

Two rods, one of aluminium and the other made of steel, having initial length l_1 and l_2 are connected together to from a single rod of length l_1+l_2. The coefficients of linear expansion for aluminium and steel are alpha_a and alpha_s and respectively. If the length of each rod increases by the same amount when their temperature are raised by t^0C, then find the ratio l_1//(l_1+l_2)